Central controller



FIG. 1 is a front perspective view of the central controller;

FIG. 2 is a front view of the central controller;

FIG. 3 is a back view of the central controller;

FIG. 4 is a right side view of the central controller;

FIG. 5 is a left side view of the central controller;

FIG. 6 is a top view of the central controller; and,

FIG. 7 is a bottom view of the central controller.

The broken lines in the drawings depict parts of the central controller that form no part of the claim. 

CLAIM The ornamental design for “a central controller,” as shown and described. 